Seiko Cal. 6391 - 455

This Spring Drive model from 1986 features a 44mm Two-Tone case. Powered by the 6391 caliber with 23j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-859a1f6ac2f8]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1986

Related Models

• Seiko 7085-682
• Seiko 6696-542
• Seiko 5616-882
• Seiko 3821-257
• Seiko 6676-275
• Seiko 4449-844
• Seiko 6652-288
• Seiko 4546-224
• Seiko 6186-639
• Seiko 6180-322
• Seiko 5272-452
• Seiko 6120-752